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AD9992BBCZ bảng dữ liệu(PDF) 6 Page - Analog Devices |
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6 / 92 page AD9992 Rev. C | Page 6 of 92 TIMING SPECIFICATIONS CL = 20 pF, AVDD = DVDD = TCVDD = 1.8 V, DRVDD = 3.0 V, fCLI = 40 MHz, unless otherwise noted. Table 4. Parameter Symbol Min Typ Max Unit MASTER CLOCK (See Figure 15) CLI Clock Period tCONV 25 ns CLI High/Low Pulse Width 10 12.5 15 ns Delay from CLI Rising Edge to Internal Pixel Position 0 tCLIDLY 6 ns SLAVE MODE SPECIFICATIONS (See Figure 76) VD Falling Edge to HD Falling Edge in Slave Mode tVDHD 0 VD period − 5 × tCONV ns HD Edge to CLI Rising Edge (Only Valid if OSC_RSTB = LO) tHDCLI 3 tCONV − 2 ns HD Edge to CLO Rising Edge (Only Valid if OSC_RSTB = HI) tHDCLO 3 tCONV − 2 ns Inhibit Region for SHP Edge Location tSHPINH 48 63 Edge location AFE CLPOB PULSE WIDTH (See Figure 22 and Figure 32)1, 2 2 20 Pixels AFE SAMPLE LOCATION (See Figure 16 and Figure 19)1 SHP Sample Edge to SHD Sample Edge tS1 11 12.5 ns DATA OUTPUTS (See Figure 20 and Figure 21) Output Delay from DCLK Rising Edge tOD 1 ns Inhibited Area for DOUTPHASE Edge Location tDOUTINH SHDLOC + 1 SHDLOC + 15 Edge location Pipeline Delay from SHP/SHD Sampling to DOUT 16 Cycles SERIAL INTERFACE (See Figure 83) Maximum SCK Frequency (Must Not Exceed CLI Frequency) fSCLK 40 MHz SL to SCK Setup Time tLS 10 ns SCK to SL Hold Time tLH 10 ns SDATA Valid to SCK Rising Edge Setup tDS 10 ns SCK Falling Edge to SDATA Valid Hold tDH 10 ns INHIBIT REGION FOR SHP AND SHD WITH RESPECT TO H-CLOCK EDGE PLACEMENT (see Figure 19) for H*POL = 1 RETIME = 0, MASK = 0 tSHDINH H*NEGLOC – 15 H*NEGLOC – 0 Edge location RETIME = 0, MASK = 1 tSHDINH H*POSLOC – 15 H*POSLOC – 0 Edge location RETIME = 1, MASK = 0 tSHPINH H*NEGLOC – 15 H*NEGLOC – 0 Edge location RETIME = 1, MASK = 1 tSHPINH H*POSLOC – 15 H*POSLOC – 0 Edge location 1 Parameter is programmable. 2 Minimum CLPOB pulse width is for functional operation only. Wider typical pulses are recommended to achieve good clamp performance. |
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